public async Task <SnapshotContainer> LoadSnapshotAsync <TAggregate, TIdentity, TSnapshot>(
TIdentity identity,
CancellationToken cancellationToken)
where TAggregate : ISnapshotAggregateRoot <TIdentity, TSnapshot>
where TIdentity : IIdentity
where TSnapshot : ISnapshot
{
_log.Verbose(() => $"Fetching snapshot for '{typeof(TAggregate).PrettyPrint()}' with ID '{identity}'");
var committedSnapshot = await _snapshotPersistence.GetSnapshotAsync(
typeof(TAggregate),
identity,
cancellationToken)
.ConfigureAwait(false);
if (committedSnapshot == null)
{
_log.Verbose(() => $"No snapshot found for '{typeof(TAggregate).PrettyPrint()}' with ID '{identity}'");
return(null);
}
var snapshotContainer = await _snapshotSerilizer.DeserializeAsync <TAggregate, TIdentity, TSnapshot>(
committedSnapshot,
cancellationToken)
.ConfigureAwait(false);
return(snapshotContainer);
}
protected override Task LoadSnapshotAsync(TSnapshot snapshot, ISnapshotMetadata metadata, CancellationToken cancellationToken)
{
return(snapshotPersistence.GetSnapshotAsync(typeof(TAggregate), base.GetIdentity(), cancellationToken));
}